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Type: Round Shank Chisel 

Raw Material: Tungsten Carbide (42CrMo)

Used for: Rock Drilling Bucket, Core Barrel, Conical and Flat Rock Auger

Model: B47K19H, B47K22H, C31...etc. 

Applicable Formation: Loosening water-bearing cohesive and non-cohesive soils, or drilling in strong/middle/weak weathered rock of foundation piles.


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Introduction:

Round shank chisel are also called bullet teeth, bullet tooth, they belong to the necessary spare parts of rotary rock drilling bucket, core barrel and rock augers. When drilling tools do the piling job, the drilling teeth contact the rock or soil firstly, the drilling teeth cut the rock or soil, then the bored piling tools took the soil or rock out. Therefore, drilling teeth plays a great role in piling operations. How the wear-resisting degree of drill teeth and the drilling efficiency, that will directly affect the efficiency of piling progress. And, there are many different kinds of drilling teeth: B47K17.5H, B47K19H, B47K22H, C31 (kennametal teeth, betek drilling teeth)..., etc. Clients should choose the right drill bits according to the piles condition, or ask JZTG factory for professional advice. 


Application:

Bullet teeth drilling tools are used with rock drilling bucket, core barrel or rock auger together for foundation bored piles piling job. The rotary piling tools with bullet teeth can be suitable for loosening water-bearing cohesive and non-cohesive soils, or breaking and ripping medium to strong weathered rock layers. hard bedrock.






Parameters of JZTG Bullet Teeth Drill Bits: 

Type Model No. Unit Weight
Kg
Geological Adaptation
Bullet Teeth B47K17.5H 1.1 Suitable for below 60MPa:
All kinds of unstable shale, dense marl, relatively strong sandstone, sandy shale, shale sandstone, weathering rock
Bullet Teeth B47K19H 1.2
Bullet Teeth B47K22H 1.25
Round Holder B85/2 2.45 Heat treatment, with strong stability and improve the welding strength.  Can improve the rotary performance of the tool head.
Square Holder B43H 1.75
Bullet Teeth C31HD 0.5 Used for drilling most soil and gravel or shale.  Use spiral, small aperture, less abrasive rock and permafrost.
Square Holder C30 1.25 Heat treatment, with strong stability and improve the welding strength.  Can improve the rotary performance of the tool head.
Round Holder C30 0.8
Other sizes can be manufactured as per customers' demand.
Part of JZTG other Drilling Teeth intro:
Type Model No. Geological Adaptation
Integrated Type 55-22T Moderately weathered rock
30Mpa-50Mpa
60-26T Moderately weathered rock
30Mpa-90Mpa
60-28T Moderately weathered rock
30Mpa-100Mpa
60-30T Moderately weathered rock
30Mpa-120Mpa
Hard rock wear resistant 55-22S Moderately weathered rock
30Mpa-60Mpa
60-24S Suitable for hard rock
30Mpa-80Mpa
60-28S Suitable for hard rock
30Mpa-120Mpa
60-31S For extremely hard rock
Langya series 55-10K22 Suitable for drilling teeth wear too fast
(Medium hard rock 30Mpa-50Mpa)
60-10K26 Suitable for drilling teeth wear too fast
(Medium hard rock 30Mpa-90Mpa)
60-12K28 Suitable for drilling teeth wear too fast
(Medium hard rock 30Mpa-100Mpa)
Langya series 55-12K22 Suitable for drilling teeth wear too fast
(Medium hard rock 30Mpa-60Mpa)
60-12K24 Suitable for drilling teeth wear too fast
(Medium hard rock 30Mpa-100Mpa)
60-14K28 Suitable for drilling teeth wear too fast
(Medium hard rock 30Mpa-120Mpa)
Article alloy 55-9T Suitable for drilling teeth wear too fast
( Medium hard rock 20-50Mpa)
Hard rock optical body ductile teeth Impact 60-26 Suitable for hard rock with high requirement of impact toughness of alloy 30-100 MPA
The pebble series 60F-10K20 Suitable for tooth wear too fast (pebble stratum)
Crushed stone gravel 60F-22T Suitable for gravelly cobble formation
Hard rock attacking type 60-24 For hard rock requiring high impact toughness of alloy 30-80Mpa
There are more types of bullet teeth suitable for different strata geology, contact us freely if you need much detail information.


Packing & Delivery Show: 










Advantages:

1-Patented design, much more reasonable structure and much more durable;

2-High strength carbide tungsten drilling teeth, round holder forging center positioning quarter head;

3-JZTG carbide tip adopt low-cobalt material, bigger carbide tip, stronger abrasion resistance;

4-JZTG drilling teeth has super impact strength since the carbide tip has well-distributed micro-particles, which makes higher force intensity and reduce the risk of breaking or cracking the teeth during the bored piles piling job. 

5-Bigger carbide size, smooth body surface with less resistance, multi-step of carbide teeth with low probability of partial friction, all these makes JZTG rotary drill bits has faster drilling efficiency;

6-JZTG has different types of drill teeth, suitable for different strata, JZTG could recommend the most suitable teeth according to customer requirements. 

7-True factory, strong production capacity, OEM available, professional R&D team, Factory Price and Timely Delivery.


For other details contact JZTG freely.

Type Model No. Unit Weight
Kg
Geological Adaptation
Bullet Teeth B47K17.5H 1.1 Suitable for below 60MPa:
All kinds of unstable shale, dense marl, relatively strong sandstone, sandy shale, shale sandstone, weathering rock
Bullet Teeth B47K19H 1.2
Bullet Teeth B47K22H 1.25
Round Holder B85/2 2.45 Heat treatment, with strong stability and improve the welding strength.  Can improve the rotary performance of the tool head.
Square Holder B43H 1.75
Bullet Teeth C31HD 0.5 Used for drilling most soil and gravel or shale.  Use spiral, small aperture, less abrasive rock and permafrost.
Square Holder C30 1.25 Heat treatment, with strong stability and improve the welding strength.  Can improve the rotary performance of the tool head.
Round Holder C30 0.8
Other sizes can be manufactured as per customers' demand.











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